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Where Environmental Expertise Meets Deep Community Roots

Riparia is a Pacific Northwest environmental services and construction company built at the intersection of science, restoration, and field execution. We maintain stormwater infrastructure, restore natural systems, manage invasive species, navigate environmental permitting, and deliver construction field services—all with the same core commitment: to protect and maintain the landscapes and water systems our communities depend on.

As a subsidiary of MacKay, we combine the credentials of an engineering firm with the hands-on capability of an experienced field crew—giving clients a single, accountable partner for the full range of their environmental and stormwater needs.

Contact the Riparia Team

Three construction workers wearing hard hats and high-visibility vests walking and talking in a sunny forest clearing

Our Story

Riparia was founded on a straightforward premise: that the Pacific Northwest needed an environmental services company that could go beyond advising and actually get in the field, execute the work, and stand behind the results.

Over decades of work across Washington, Oregon, Idaho, and Northern California, we’ve grown from a small field crew into a full-service environmental and construction organization. The things that defined us at the beginning have stayed the same: an honest approach to client relationships and a commitment to doing the work right.

As a subsidiary of one of the Pacific Northwest’s most respected engineering and consulting firms, Riparia has access to licensed engineers, environmental scientists, and technical specialists who complement our field capabilities. Our clients get engineering-level insight and field-level execution from a single team.

Four construction workers wearing hard hats and high-visibility shirts review plans while standing beside a white work truck.

Our Approach

  • We Start with Honesty: We tell clients what they need to hear, not what they want to hear—honest assessments, realistic timelines and budgets, and straightforward conversations when conditions change.
  • We Look for Root Causes: Whether we’re troubleshooting a stormwater facility that keeps falling out of compliance or evaluating why a restoration planting isn’t establishing, we work to understand the underlying cause so the solutions we implement actually hold.
  • We Bring Science & Construction Together: Our team includes environmental scientists, CESCL-certified technicians, wetland professionals, and experienced construction crews working together from first site assessment through final installation and long-term monitoring.
  • We Build for the Long Term: Riparia is built around repeat clients and ongoing relationships—we invest in understanding our clients’ facilities, their regulatory obligations, and their long-term goals.
  • We Document Everything: In environmental and stormwater work, documentation protects clients from regulatory liability, satisfies permit requirements, and demonstrates due diligence. We produce thorough, timely, well-organized records of everything we do.

Our Team

  • Smiling bald man with a full dark beard wearing a light gray button-up shirt, standing outdoors with blurred green background

    Tommy Miller

    Operations Manager

  • Smiling young man with short hair, glasses, and a trimmed beard wearing an orange Columbia fleece standing outdoors on a sunny day

    Nick Curcio

    Senior Stormwater Project Manager

  • Smiling young woman with long dark hair wearing a light denim shirt with lace sleeves, standing outdoors on a sunny grassy background

    Beatrice McAlister

    Environmental Project Manager

  • Smiling middle-aged woman with long light brown hair and blue eyes wearing a dark Columbia jacket, standing outdoors on a sunny grassy background

    Tami Morris

    Project Coordinator II

  • Smiling middle-aged man wearing a bright lime green Riparia Environmental t-shirt, standing outdoors with blurred trees and grass behind him

    Ryon Foster-Edwards

    Stormwater Analyst

  • Young woman smiling outdoors wearing a black Riparia Environmental puffer vest over a white shirt with green park background

    Chelbi Cook

    Environmental Monitoring Technician

Additional Expertise

  • Smiling woman with curly hair and red-framed glasses wearing a light blouse, arms crossed, standing outdoors with blurred green foliage behind her

    Alexis Casey

    Senior Environmental Scientist / Team Lead

  • smiling middle-aged man with a long gray beard, balding head, and striped dark button-up shirt standing outdoors with blurred greenery behind him

    Chad McMurry

    PE, Senior Stormwater Engineer

Straight road rising toward a distant sunlit snow-covered mountain, flanked by trees and streetlamps at dusk.

MacKay is a multidisciplinary firm providing infrastructure and environmental services backed by more than 50 years of successful projects. Our passionate team focuses on building lasting relationships through quality work, creative design, and collaboration. We offer civil engineering, landscape architecture, land surveying, environmental science and permitting, construction management and inspection, planning and entitlement, and geographic information systems (GIS) services. With the addition of our subsidiary, Riparia Environmental, we now deliver a full suite of services from design and engineering to maintenance and environmental compliance. Together, we balance development with environmental stewardship and sustainability.